goto-vim: also match file:line,garbage
kernel-post-upgrade: avoid copying the kernel twice
Revert "kernel-post-upgrade: avoid copying the kernel twice"

This reverts commit d0dada3c16cf9fa841be69f92130dc673580266f.

On the other hand, it won't hurt and is cleaner anyway.  Waiting for
Arch to start using systemd's installkernel...
kernel-post-upgrade: edit status messages
ssh-duphosts: add an 'unmerge' mode
Merge branch 'old/duphosts-unmerge'
lib.bash: add colors to warn/err/die
lib.bash: less echo, more printf
lib.bash: fix printf breakage
lib.bash: remove one last echo
lib.bash: fix wrong color for warnings
libfilterfile.bash: warn about unknown #foo lines

e.g. if I accidentally use #fi
lib.bash: display warn/err backtrace at higher debug levels
libfilterfile.bash: limit the warning to just /^#[a-z]/
lib.bash: minimally colourify debug output
update-authorized-keys: set $VERBOSE if $DEBUG
lib.bash: make say() use $DEBUG instead
update-authorized-keys: don't verify empty file
lib.bash: print backtrace directly from warn/err/die

Allows print_msg to be used elsewhere.
libhttpfetch.bash: use 'err' instead of nonexistent 'error'